1. Alnico case, 28 buttons.
2. 9 steps speed control, LCD screen, pelco-p, pelco-b protocol setting.
3. Could control 255 high speed domes at most.
1. Power voltage: DC 9V. 2. Power consumption: 3W. 3. Communication: RS485. 4. Distance: 1200M. 5. Protocol: pelco-d, pelco-p. 6. Baud rate: 1200, 2400, 4800, 9600. 7. Most adds: 255. 8. Display: LED. 9. Speed step 9 steps. 10. Direction control button. 11. Buttons: 28. 12. Dimension(mm): 220 x 180 x 56. 13. Weight (kg): 1.73.